So this will allow you to fast charge without needing a custom kernel?

I haven't tried this out yet as I don't have an aTtiny85 handy but I put together a quick arduino sketch for the microcontroller novice like myself.

// Arduino sketch for an aTtiny85 

void setup()
{
  pinMode(1, OUTPUT);       // SPIDIF/Phone pin / hardware pin 6
  pinMode(0, OUTPUT);      // Led pin / hardware pin 5
  attachInterrupt(0, wake, FALLING); // innterupt "o" is on digital pin 2 hardware pin 7
}

void loop()
{
  digitalWrite(0, HIGH);
  delay(1500);
  digitalWrite(0, LOW);
  delay(1500);
}

void wake()
{
  detachInterrupt(0)          // Turn Intterupt off
  digitalWrite(1, HIGH);  
  delay(50);                  //Dock Type Delay, 50mS for desk, 100mS for car
  digitalWrite(1, LOW);
  delay(50);                  //Charge type delay, 50mS for High current, 100mS for low
  digitalWrite(1, HIGH);
  delay(100);                 //Audio Connection delay, 50mS for connected, 100mS for disconnected
  digitalWrite(1, LOW);
  delay(600);
  attachInterrupt(0, wake, FALLING); // Turn intterupt back on 
}

---------- Post added at 07:27 PM ---------- Previous post was at 07:22 PM ----------

Originally Posted by aggie6600

So this will allow you to fast charge without needing a custom kernel?

The idea is to be able to make a dock with a microcontroller in it that signals the phone the right settings for the dock. So yes it will set the phone to (AC) fast charge mode if you have it set to that.

Originally Posted by soundwire

I haven't tried this out yet as I don't have an aTtiny85 handy but I put together a quick arduino sketch for the microcontroller novice like myself.

// Arduino sketch for an aTtiny85 

void wakeResponce()
{
  detachInterrupt(0)          // Turn Intterupt off
  digitalWrite(1, HIGH);  
  delay(50);                  //Dock Type Delay, 50mS for desk, 100mS for car
  digitalWrite(1, LOW);
  delay(50);                  //Charge type delay, 50mS for High current, 100mS for low
  digitalWrite(1, HIGH);
  delay(100);                 //Audio Connection delay, 50mS for connected, 100mS for disconnected
  digitalWrite(1, LOW);
  delay(600);
  attachInterrupt(0, wakeResponce, FALLING); // Turn intterupt back on 
}

void setup()
{
  pinMode(1, OUTPUT);       // SPIDIF/Phone pin / hardware pin 6
  pinMode(0, OUTPUT);      // Led pin / hardware pin 5
  attachInterrupt(0, wakeResponce, FALLING); // innterupt "o" is on digital pin 2 hardware pin 7
}

void loop()
{
   while(1)
   {
        // Loop forever and blink led connected to pin0 
        count++;
        if(count < 200000){
        digitalWrite(0, HIGH);
        }
        if(count > 200000){
        digitalWrite(0, LOW);
        }
        if(count == 400000){
        count = 0;
        }
   }
}

---------- Post added at 07:27 PM ---------- Previous post was at 07:22 PM ----------



The idea is to be able to make a dock with a microcontroller in it that signals the phone the right settings for the dock. So yes it will set the phone to (AC) fast charge mode if you have it set to that.

A small thing I was going to note, and add to my firmware, is that we should be measuring the wake pulse if possible. As my code is right now, it responds to all pulses, including spdif data. Which will really mess with the data, resulting in something the SPDIF receiver/DAC will not enjoy.

But otherwise, that code gets the general gist of it.

Other note, the phone does report that it is in AC Charge mode when docked.

I am going to see if I can find something that I can drag out to my shop to see if the SPDIF data will feed directly into a stereo

You guys are incredible for actually going through with this. Its way more work that just using the fast charge kernels, but inspiring! Don't know if you saw or not, but Expansys said the Samsung docks are all manufactured, and they are trying to get an early shipment to France by the end of the month. Ya'll might still beat 'em!
I might even tear apart my Frankendock to solder something to the middle pin...

Couldn't you get it to respond to the first wake pulse and just not reattach the interrupt? That'd stop it from responding to the spdif audio signals.

Matt

Sent from my Galaxy Nexus using XDA

Hey guys. How would I go about taking apart my galaxy nexus pogo dock? I want to do some remodeling so that it will fit the i515 variant...

---------
Never mind i figured it out

Originally Posted by anton2009

Hey guys. How would I go about taking apart my galaxy nexus pogo dock? I want to do some remodeling so that it will fit the i515 variant...

---------
Never mind i figured it out

Any chance you could undo those screws, flip the board over, and get us a good shot of the component side of that board?

Originally Posted by mephi

Couldn't you get it to respond to the first wake pulse and just not reattach the interrupt? That'd stop it from responding to the spdif audio signals.

Matt

Sent from my Galaxy Nexus using XDA

Ya, but then if you took the phone out and put it back in, nothing would happen, because your microcontroller isn't listening for the pulse anymore.

I have already posted pics awhile ago..

http://forum.xda-developers.com/show....php?t=1626139

Sent from my Galaxy Nexus using XDA

I wish I knew what I was reading in this thread so I could help out in some fashion